US1636485A - Process for the manufacture of anthraquinone derivatives - Google Patents

Process for the manufacture of anthraquinone derivatives Download PDF

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Publication number
US1636485A
US1636485A US99984A US9998426A US1636485A US 1636485 A US1636485 A US 1636485A US 99984 A US99984 A US 99984A US 9998426 A US9998426 A US 9998426A US 1636485 A US1636485 A US 1636485A
Authority
US
United States
Prior art keywords
diamino
manufacture
acid
anthraquinone
omega
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US99984A
Other languages
English (en)
Inventor
Perkin William Henry
Fyfe Alexander Walker
Mendoza Mordecai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imperial Chemical Industries Ltd
Original Assignee
British Dyestuffs Corp Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by British Dyestuffs Corp Ltd filed Critical British Dyestuffs Corp Ltd
Application granted granted Critical
Publication of US1636485A publication Critical patent/US1636485A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
    • C09B1/16—Amino-anthraquinones
    • C09B1/20—Preparation from starting materials already containing the anthracene nucleus
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B1/00—Dyes with anthracene nucleus not condensed with any other ring
    • C09B1/16—Amino-anthraquinones
    • C09B1/20—Preparation from starting materials already containing the anthracene nucleus
    • C09B1/26—Dyes with amino groups substituted by hydrocarbon radicals
    • C09B1/28—Dyes with amino groups substituted by hydrocarbon radicals substituted by alkyl, aralkyl or cyclo alkyl groups
    • C09B1/30—Dyes with amino groups substituted by hydrocarbon radicals substituted by alkyl, aralkyl or cyclo alkyl groups sulfonated

Definitions

  • anthraquinones with formaldehyde and a the invention is not confined to the example.
  • the mass becomes fluid again. After settling overnight, most of the waste acid is decanted, and the residue is filtered, washed with water until the filtrate is only slightly acid, and then with 2 per cent soda solution, until the filtrate shows slight alkalinity.
  • the slightly alkaline paste is thoroughly incorporated with a mixture (previously made and allowed to stand until cold) of 2.5 gram molecules sodium bisulphite solution of about 40 per cent strength and. 2.5 gram molecules formaldehyde of similar strength.
  • the mass is then diluted with 1500 cos. of water and heated with stirring, under reflux, for about eight hours at C. in an enamelled pan. At the end of this period, and while the resulting solution is still hot, one litre of saturated salt solution is stirred in. The mixture is then cooled to the ordinary temperature, filtered and pressed well.
  • the purfied substance has the formula C O IIIHCH SMND.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Heat Sensitive Colour Forming Recording (AREA)
  • Detergent Compositions (AREA)
US99984A 1925-07-08 1926-04-05 Process for the manufacture of anthraquinone derivatives Expired - Lifetime US1636485A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB17542/25A GB252922A (en) 1925-07-08 1925-07-08 Improvements in the manufacture of anthraquinone derivatives

Publications (1)

Publication Number Publication Date
US1636485A true US1636485A (en) 1927-07-19

Family

ID=10096991

Family Applications (1)

Application Number Title Priority Date Filing Date
US99984A Expired - Lifetime US1636485A (en) 1925-07-08 1926-04-05 Process for the manufacture of anthraquinone derivatives

Country Status (5)

Country Link
US (1) US1636485A (xx)
BE (1) BE333340A (xx)
DE (1) DE462041C (xx)
FR (1) FR613644A (xx)
GB (1) GB252922A (xx)

Also Published As

Publication number Publication date
DE462041C (de) 1928-07-05
FR613644A (fr) 1926-11-25
GB252922A (en) 1926-06-10
BE333340A (xx)

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